/*
 * =============================================================================
 * Copyright by Benjamin Sempere,
 * All rights reserved.
 * =============================================================================
 * Author  : Benjamin Sempere
 * E-mail  : benjamin@sempere.org
 * Homepage: www.sempere.org
 * =============================================================================
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package org.sempere.commons.filter;

import org.slf4j.*;

import javax.servlet.*;

/**
 * Parent class of all filters.
 *
 * @author bsempere
 */
public abstract class AbstractFilter implements Filter {

	private static final Logger LOGGER = LoggerFactory.getLogger(AbstractFilter.class);
	private FilterConfig config;

	// *************************************************************************
	//
	// Constructors
	//
	// *************************************************************************

	public AbstractFilter() {
	}

	// *************************************************************************
	//
	// Methods from Filter interface
	//
	// *************************************************************************

	public final void init(FilterConfig config) throws ServletException {
		LOGGER.debug("in init");
		this.config = config;

		// Specific initialization
		this.initInternal();
	}

	public final void destroy() {
		LOGGER.debug("in destroy");

		// Specific destruction
		this.destroyInternal();
	}

	// *************************************************************************
	//
	// Hooks
	//
	// *************************************************************************

	protected void initInternal() {
		LOGGER.debug("in initInternal");
	}

	protected void destroyInternal() {
		LOGGER.debug("in destroyInternal");
	}

	// *************************************************************************
	//
	// Getters and Setters
	//
	// *************************************************************************

	public FilterConfig getConfig() {
		return config;
	}

	public void setConfig(FilterConfig config) {
		this.config = config;
	}
}